Several Chromebooks running Chrome OS v49 are experiencing issues with automatic updates as reported by Google in the recent Chromium bug tracker.
It is ascertained that the Chrome OS v49 harbours an inherent critical bug in its firmware update which has reportedly affected a bunch of devices including Lenovo N22 11.6, Acer Chromebook R11, Sanance/Chromebook 14, Asus Chromebook C300SA and ThinkPad 11e Chromebook.
The issue seems to be somehow linked to automatic updates. Hence, Google has taken preventive measures to stop these updates for the affected Chromebook models (listed above), until a permanent fix is found for the problem.
Here is what Google wrote in its recent post on the Chromium bug tracker:
There is a critical bug in the firmware updater that we are actively investigating which may impact few devices during an auto update: Lenovo N22 11.6, Acer Chromebook R11, Sanance / Chromebook 14, Asus Chromebook C300SA and ThinkPad 11e Chromebook. As a precaution, we have temporarily paused the automatic updates for these units until we are confident the problem is root caused/resolved. We should be able to resume automatic updates in the next coming days and confirm on this bug accordingly.
Google is already working on a bug fix for the problem while it is evident that only a few listed Chromebooks with Chrome OS v49 are affected with the bug. So, this is not a widespread issue that could affect every Chromebook running the Chrome OS v49 operating system.
Although Google has not divulged any info about the turnaround time for releasing the bug fix, some reports suggest that it will happen before the upcoming weekend.